We at the El Reg Iberian bureau's Donkey Affairs Department are very much obliged for all your suggestions as to how we might name the latest member of our asinine fold – the splendid jenny seen here* yesterday challenging kittens in baskets for a slice of the 2012 cute creature calendar market:
Our unnamed jenny seen yesterday …

Bucephala is accurate actually

Sorry to get all pedantic here but Bucephala is in fact the actual name of Alexander's steed in greek. The duck was named such because of its big/puffy head which is what bucephala literally means (boffin humour perhaps?).